//
// Copyright (c) 2017 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

package virtcontainers

import (
	"io/ioutil"
	"os"
	"testing"

	"github.com/containers/virtcontainers/pkg/annotations"
	"github.com/stretchr/testify/assert"
)

var assetContent = []byte("FakeAsset fake asset FAKE ASSET")
var assetContentHash = "92549f8d2018a95a294d28a65e795ed7d1a9d150009a28cea108ae10101178676f04ab82a6950d0099e4924f9c5e41dcba8ece56b75fc8b4e0a7492cb2a8c880"
var assetContentWrongHash = "92549f8d2018a95a294d28a65e795ed7d1a9d150009a28cea108ae10101178676f04ab82a6950d0099e4924f9c5e41dcba8ece56b75fc8b4e0a7492cb2a8c881"

func TestAssetWrongHashType(t *testing.T) {
	assert := assert.New(t)

	tmpfile, err := ioutil.TempFile("", "virtcontainers-test-")
	assert.Nil(err)

	defer func() {
		tmpfile.Close()
		os.Remove(tmpfile.Name()) // clean up
	}()

	_, err = tmpfile.Write(assetContent)
	assert.Nil(err)

	a := &asset{
		path: tmpfile.Name(),
	}

	h, err := a.hash("shafoo")
	assert.Equal(h, "")
	assert.NotNil(err)
}

func TestAssetHash(t *testing.T) {
	assert := assert.New(t)

	tmpfile, err := ioutil.TempFile("", "virtcontainers-test-")
	assert.Nil(err)

	defer func() {
		tmpfile.Close()
		os.Remove(tmpfile.Name()) // clean up
	}()

	_, err = tmpfile.Write(assetContent)
	assert.Nil(err)

	a := &asset{
		path: tmpfile.Name(),
	}

	hash, err := a.hash(annotations.SHA512)
	assert.Nil(err)
	assert.Equal(assetContentHash, hash)
	assert.Equal(assetContentHash, a.computedHash)
}

func TestAssetNew(t *testing.T) {
	assert := assert.New(t)

	tmpfile, err := ioutil.TempFile("", "virtcontainers-test-")
	assert.Nil(err)

	defer func() {
		tmpfile.Close()
		os.Remove(tmpfile.Name()) // clean up
	}()

	_, err = tmpfile.Write(assetContent)
	assert.Nil(err)

	p := &PodConfig{
		Annotations: map[string]string{
			annotations.KernelPath: tmpfile.Name(),
			annotations.KernelHash: assetContentHash,
		},
	}

	a, err := newAsset(p, imageAsset)
	assert.Nil(err)
	assert.Nil(a)

	a, err = newAsset(p, kernelAsset)
	assert.Nil(err)
	assert.Equal(assetContentHash, a.computedHash)

	p = &PodConfig{
		Annotations: map[string]string{
			annotations.KernelPath: tmpfile.Name(),
			annotations.KernelHash: assetContentWrongHash,
		},
	}

	a, err = newAsset(p, kernelAsset)
	assert.NotNil(err)
}